Tempus AI's stock experienced a significant after-hours plunge of 6.75% on Tuesday, following the release of its first-quarter financial results.
The company reported quarterly results that exceeded Wall Street expectations, with revenue of $348.12 million beating estimates and an adjusted loss per share that narrowed significantly year-over-year. Furthermore, Tempus AI raised its full-year 2026 revenue guidance.
Analysts attribute the post-market decline to a classic "buy-the-rumor, sell-the-news" dynamic. The stock had surged more than 10% during the regular trading session on optimism surrounding the AI-driven healthcare sector and the upcoming earnings report. Once the positive results were confirmed, investors chose to lock in profits, leading to the sharp pullback in after-hours trading.